225438 @2850 f.p.s.

[mainiac]

I got my rem 700 sporter in .222, up to 2850 f.p.s. today,,with acceptable accuracy. I was some what surprised that accuracy would hold up at this level.Next step,is to push my luck and see how much farther i can go.Do i dare?????? yah!

All my previous .22 shooting seemed to hit a wall @2700. Maybe this particular barrell will allow full speed......

BTW, barrell is real clean,no apparent leading issue,,,,,,,,,,,,,,,,,,,,yet

[cummins05]

Sounds pretty awesome to me

[Larry Gibson]

What is "acceptable accuracy"?

The more I work with the short stubby Loverin design 225428 at HV the more it does well, perhaps it may even perform better than the 225462.

What load?

Larry Gibson

[LynC2]

What is "acceptable accuracy"?

The more I work with the short stubby Loverin design 225428 at HV the more it does well, perhaps it may even perform better than the 225462.

What load?

Larry Gibson

Excellent question, I was wondering that myself. Those velocities are unreal for a cast GC boolit with good accuracy!

[Boolseye]

+1 on "what load??"

I will be shooting that boolit (225438)tomorrow for the first time out of a TC Encore .223.
I have various loads, including 700x up to 7.5 grains and Unique at 8 grains. I'm bringing my chrono to see where the loads are at.
-BE

[Sensai]

That's my favorite boolit (225438) for the 22 Hornet. I've pushed it to 2800+ with Lil'Gun and Hornady gas checks, but I'm starting all over with home made aluminum checks. For the higher velocities I've been using heat treated wheel weight with a little tin. My threshold for acceptable accuracy for this round is two inches at 100 yards.

[mainiac]

well, i am currently using surplus 846. Theres no load data that i could find,so im just experimenting with it.Its been said that 846 can use blc-2 data,,so thats what i used.

I started @ 17 grs,,for 2250 f.p.s.,,and ended up @ 22,,good for the 2850 f.p.s.,,this 2850 speed load,does very close to 1.5 inch@100.

I didnt use any fillers, and the very light loads had 150-160 f.p.s ES,,although the accuracy was good,,,go figure!!!! Once i got up to higher pressures,the ES calmed down to 25-25,,much better.

Water dropped ww alloy,felix lube,and the boolit into the lands about .010

BTW, Mr Gibson,,my definition of acceptable accuracy???? Well, the high speed load shot almost as well as your magic load of 19-4895,the one you put me onto sometime ago. I consider that load the gold standard in the duece!!!

[mainiac]

That's my favorite boolit (225438) for the 22 Hornet. I've pushed it to 2800+ with Lil'Gun and Hornady gas checks, but I'm starting all over with home made aluminum checks. For the higher velocities I've been using heat treated wheel weight with a little tin. My threshold for acceptable accuracy for this round is two inches at 100 yards.

My hornet goes to **** @2700,,like,8-10 inch groups.When i keep this boolit 2400 or less,it will shoot very well.

[357maximum]

sounds like you are on the right track to me, when your alloy poops out on you and accuracy goes south look into the copper alloy threads in the alloy section...it will gain you some speed and some accuracy if done correctly and doing it correctly is not some mystery that only a few can solve. Alloying copper into babbit and then adding it into another alloy is easy iffin you can follow directions. With proper alloy 3200+ is achievable at the 1.5 inch or less accuracy arena in the right gun and it sounds like you have that issue covered.

Good luck/have fun,
Mike

[JeffinNZ]

I have had quite respectable accuracy from a 225415 at 2700fps out of my .223 Rem over a charge of W748. Well less than 2 MOA from memory.

[Sensai]

My hornet goes to **** @2700,,like,8-10 inch groups.When i keep this boolit 2400 or less,it will shoot very well.

That's about when the accuracy goes south for me with air cooled wheel weight alloy. With my heat treated alloy I can push it just a little above 2800, but not much, before the same thing happens. It deteriorates at a lower velocity with my Ruger than my Savage, and the only pertinent difference that I can tell is that the Ruger has a faster twist rate. That leads me to believe that the cause is the rotational speed being too fast for the allow.

[Larry Gibson]

well, i am currently using surplus 846. Theres no load data that i could find,so im just experimenting with it.Its been said that 846 can use blc-2 data,,so thats what i used.

I started @ 17 grs,,for 2250 f.p.s.,,and ended up @ 22,,good for the 2850 f.p.s.,,this 2850 speed load,does very close to 1.5 inch@100.

I didnt use any fillers, and the very light loads had 150-160 f.p.s ES,,although the accuracy was good,,,go figure!!!! Once i got up to higher pressures,the ES calmed down to 25-25,,much better.

Water dropped ww alloy,felix lube,and the boolit into the lands about .010

BTW, Mr Gibson,,my definition of acceptable accuracy???? Well, the high speed load shot almost as well as your magic load of 19-4895,the one you put me onto sometime ago. I consider that load the gold standard in the duece!!!

That's a good slower burning powder for that cartridge and bullet. If it is indeed holding close to 1.5 moa you are doing quite well. Are you getting any flyers? I ask because with a 14" twist you are on the ragged edge of the RPM threshold. If you get 1 flyer out of a 5 shot group or 2 -3 out of a 10 shot group then that indicates you are right at the RPM threshold. What is the load density?

Larry Gibson

[Boolseye]

Shot some 225438 today out of .22 jet and .223, various powders up to about 2300 fps, good accuracy and no leading.
I don't have a need to push them any harder, but it's nice to know they can do it!
-BE

[mainiac]

That's a good slower burning powder for that cartridge and bullet. If it is indeed holding close to 1.5 moa you are doing quite well. Are you getting any flyers? I ask because with a 14" twist you are on the ragged edge of the RPM threshold. If you get 1 flyer out of a 5 shot group or 2 -3 out of a 10 shot group then that indicates you are right at the RPM threshold. What is the load density?

Larry Gibson

I get an occational flyer,with the 225438, but no where near as many,as when i was using the 225415.

My highest charge load is way below the shoulder,,as far as density,id say below 75%,,,,,,
I currently have 5 22 molds,and always come back to the 438,if i want to shoot best groups...